Per operator request on the PR: the built-in/default prices were the old
Claude 3 numbers (opus 15/75, etc.). Update opus + haiku to the current
Claude 4.x family list pricing (cache_write = the default 5-minute cache
TTL); sonnet was already correct:
- opus: input 5, output 25, cache_read 0.5, cache_write 6.25
- sonnet: input 3, output 15, cache_read 0.3, cache_write 3.75 (unchanged)
- haiku: input 1, output 5, cache_read 0.1, cache_write 1.25
Updated in both builtin_prices (hive_stats.rs) and the nix modelPrices
default (hive-c0re.nix), with cross-reference "keep in sync" notes on
both sides. Also addresses the earlier reviewer note: dropped the
over-strong "single source of truth" wording in the --model-prices arg
doc (the nix default does mirror the numbers in production).
a9560ebb51